A010421 Squares mod 60.

0, 1, 4, 9, 16, 21, 24, 25, 36, 40, 45, 49

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• easy

Comments

Range of A159852. - Reinhard Zumkeller, Apr 24 2009

Crossrefs

Cf. A010378, A010382, A010462. - Reinhard Zumkeller, Apr 24 2009

Row 60 of A096008.

Cf. A028773, A159852.

Programs

Magma

[n: n in [0..59] | IsSquare(R! n) where R:= ResidueClassRing(60)]; // Vincenzo Librandi, Jan 05 2020

Mathematica

Union[PowerMod[Range[60], 2, 60]] (* Alonso del Arte, Jan 03 2020 *)

Sage

[quadratic_residues(60)] # Zerinvary Lajos, May 24 2009

Scala

(1 to 60).map(n => n * n % 60).toSet.toSeq.sorted // Alonso del Arte, Jan 03 2020